GF Piping Systems” Type 563 Aqua Butterfly Valve is designed specifically for non-chemical water applications, with PVC construction and EPDM seal. Suitable uses include swimming pools, water parks, aquariums, water processing and filtration systems. The valve is available in sizes from two to 12 inches, with either a lockable hand lever that moves in five-degree increments, or with a gear-operated wheel. A glass-filled Polypropylene body and a specially engineered body seal with a Q-shaped O-ring eliminates the need for flat gaskets, allowing for easy installation between ANSI and DIN flanges. Other features include bi-directional capability, operating temperatures from 32 F to 142 F, and a wetted inner body of PVC for optimum compatibility. The valve also offers a high 150 PSI rating.